Vitamins are important nutrients for pets and people. What are their functions, and should pets be given vitamin supplements?

Similar to human foods, ingredients used in pet foods come from a number of sources. Many are obtained directly from animal or plant raw materials, but they can also be manufactured (or synthesized) and are referred to as ‘synthetic’ ingredients. What types of synthetic ingredients are used in pet foods and what is their role?

Dietary antioxidants support pet health and help preserve the nutritional quality of pet food. Learn more about the important ways that antioxidants contribute to better, longer lives for pets.

Various cooking processes are used in preparing commercial pet foods to ensure delivery of highly nutritious, palatable products. The methods used are determined by the final form (e.g., a dry or wet food), desired texture and visual properties, and packaging. Common forms of pet food include dry extruded kibbles and canned wet food.

See results from the 14-Year Purina Life Span Study.

See a list of additional key publications from the 14-Year Purina Life Span Study.

Dietary carbohydrates in pet food help meet the pet’s physiological need for glucose. However, due to the ancestral origins of dogs and cats, some owners may question whether carbohydrates should be a part of their pets’ diet.

Pets obtain essential fatty acids from their diet. What are these fatty acids, and how do they support pet health?

Feeding guidelines are designed to help owners determine the quantity of food to feed their pets to ensure an optimal body condition, but owners may be unsure how to use them.

Probiotics offer many benefits, but with so many options available, pet owners may not know how to select the best quality and most appropriate one for their pet's needs

Pet food manufacturers are committed to producing safe, nutritious cat and dog foods.

This glossary defines the key phrases used to describe commercial pet foods and explains the roles of two important associations.​